Fluid drilling system
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Solution Overview
Problem
Existing fluid drilling systems face inefficiencies in energy consumption and cutting transport when drilling deep boreholes, particularly in densely built city areas where deeper boreholes are required for geothermal heat pump installations.
Innovation Solution
A fluid drilling system utilizing a mixture of pressurized liquid and gas bubbles, with gas bubbles added to the liquid before or after pressurization, drives a drill hammer and flushes cuttings from the borehole, using a flow channel to direct the fluid through the drill bit and drill string.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional drilling methods are used, then existing infrastructure can be maintained, but drilling efficiency is low and environmental damage occurs
Solution Approach 1:
The patent employs a jet drilling system that uses high-velocity fluid jets (water or air) to erode and remove rock and soil materials. The hydraulic jet propulsion system replaces traditional mechanical drilling equipment, utilizing fluid dynamics to achieve high drilling efficiency while minimizing environmental impact through controlled fluid delivery and waste material removal.
Solution Approach 2:
The invention substitutes mechanical drilling mechanisms with a fluid-based jet system. Instead of using rotating drill bits and mechanical force to penetrate the ground, the system uses high-velocity fluid jets to erode materials, thereby reducing mechanical stress on the environment and improving drilling efficiency through controlled material removal.
2Ease of operation
If mechanical drilling equipment is used, then drilling can be performed, but equipment complexity and operational difficulty increase
Solution Approach 1:
The jet drilling system uses hydraulic propulsion to propel the drilling tool through the borehole without requiring complex mechanical transmission systems. The fluid delivery mechanism provides both propulsion and material removal functions, simplifying the overall equipment design while maintaining operational effectiveness.
Solution Approach 2:
The fluid delivery system serves multiple functions simultaneously: it propels the drilling tool forward, erodes the formation material, and removes waste cuttings from the borehole. This multi-functionality reduces the number of separate components needed, thereby simplifying equipment complexity while improving ease of operation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system achieves low energy consumption, efficient cutting transport, and deeper drilling capabilities, with minimal environmental impact and hole deviation, suitable for drilling up to 5000 meters.
Implementation Method 1
A jet drilling system utilizes a fluid delivery system to deliver a fluid jet to a drilling tool at the bottom of a borehole. The fluid jet propels the tool through the borehole and erodes the formation material, removing it from the wellbore.
Data Source
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AI summary
Various example embodiments relate to drilling a hole using a fluid drilling system. The system (1) may comprise a drill string (2), a drill hammer (3) coupled to a lower end of the drill string (2), and a flow channel (5). The flow channel (5) may lead a fluid (7) to a bottom of a borehole (8), wherein the fluid (7) may comprise pressurized liquid and gas bubbles. The fluid (7) may drive the drill hammer (3) and flush cuttings from the borehole (8). A method for drilling a hole using a fluid drilling system (1) is also disclosed.